USB: gadget: f_accessory: Add string for accessory's unique serial number

Signed-off-by: Mike Lockwood <lockwood@android.com>
(cherry picked from commit 99b7fdff26bdaa2dbdecd45db18834f9d7447632)
Change-Id: Ic4e663abf1a3c6d0ea21983f5e2171a34c0e6641
Reviewed-on: http://git-master/r/32891
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
Tested-by: Suresh Mangipudi <smangipudi@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
2 files changed